1) The correct functional group X and the reagent/reaction conditions Y in the following schemes are $X-(CH_{2})_{4}-X$ A) $X=COOCH_{3},Y=H_{2}/Ni/heat$ B) $X=CONH_{2},Y=H_{2}/Ni/heat$ C) $X=CONH_{2},Y=Br_{2}/NaOH$ D) $X=CN,Y=H_{2}/Ni/heat$ Answer: Option C,DExplanation: (a) When $X= COOCH_{3}CH_{3}OOC-(CH_{2})_{4}-COOCH_{3}$ (b) (c) (d) When X=CN In author opinion (a) and (b) should be the answer